Buxton Papers. Transcripts of telegrams from Walter Hume Long, 1st Viscount Long, as Secretary of State for the Colonies, to Sydney Buxton; 1917-1919. Correspondence between Buxton and Long, 1916-1919, is held by the Wiltshire and Swindon History Centre.
Buxton Papers. Rhodesia; 1921-1924, n.d. Correspondence, press cuttings, and file relating to the Committee on Southern Rhodesia, of which Sydney Buxton was Chairman.